API-580 Risk Mitigation and Control Measures 3

Question 1

In API-580 RBI, what is the primary criterion used to establish the inspection interval for a given piece of equipment?

Accepted Answer

The date risk is calculated to reach the defined risk tolerance threshold

Answer

API-580 sets inspection intervals based on when the projected risk is expected to reach the defined risk target, making the interval risk-driven rather than time-fixed.

Question 2

Which of the following is NOT considered a risk mitigation measure within an API-580 RBI program?

Accepted Answer

Increasing the risk tolerance threshold to avoid inspection

Answer

Increasing the risk tolerance threshold does not reduce actual risk — it merely adjusts the acceptance criterion and is not an acceptable mitigation strategy under API-580.

Question 3

How does the installation of a berm or containment dike around a storage tank affect its COF in an RBI assessment?

Accepted Answer

It reduces the consequence of failure by limiting the spread of released fluid

Answer

A containment berm limits the area impacted by a spill or release, directly reducing the consequence of failure used in the RBI risk calculation.

Question 4

According to API-580, what is the appropriate next step after implementing a risk mitigation measure?

Accepted Answer

Re-evaluate the risk to confirm it now falls within acceptable limits

Answer

API-580 requires that after implementing mitigation measures, the risk be re-evaluated to verify that residual risk is within the defined acceptable limits.

Question 5

What is the significance of the 'risk target date' in an API-580 RBI mitigation plan?

Accepted Answer

The future date when risk is projected to reach the acceptable risk threshold if no action is taken

Answer

The risk target date is when the risk for a specific piece of equipment is projected to reach the acceptable threshold, defining the latest date by which inspection or mitigation must occur.

API-580 Exam Practice Test

API-580 Exam Practice Test

API-580 Risk Mitigation and Control Measures 3